During ossiculoplasty for chronic otitis media, the surgeon finds the malleus and incus eroded by disease, while the stapes superstructure is intact and mobile. Which prosthesis is appropriate?

• A PORP (partial ossicular replacement prosthesis) ✓
• B TORP (total ossicular replacement prosthesis)
• C Robinson stapes prosthesis
• D Grommet ventilation tube

Explanation

B partial ossicular replacement prosthesis bridges from the tympanic membrane or drum graft to the stapes head, and is selected whenever the stapes superstructure is intact and mobile. When the superstructure is lost and only the footplate remains, a total ossicular replacement prosthesis resting on the footplate is required. The Robinson prosthesis is a stapes prosthesis used in otosclerosis surgery, and a grommet treats middle ear effusion, neither of which addresses ossicular discontinuity here.

Reference: Scott-Brown's Otorhinolaryngology Head and Neck Surgery, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.